The Ordinary Caffeine Solution 5% + EGCG (30ML) is a lightweight solution that utilizes caffeine and EGCG (Epigallocatechin gallatyl glucoside) to reduce visible under-eye puffiness and dark circles. It is specifically formulated to be non-irritating, hypoallergenic, and suitable for all skin types. With regular use, this solution helps improve the appearance of skin to make it look firm and revitalized.